the art of incubation and brooding fig 3 similar letters refer to similar parts throughoutthe several views 87 e a biiej5ieiiiietoefa tp aa are inlets for conducting hot air into theheater s through pipes bb when e is openedit allows the hot air to pass up aa and ccthrough d and out at e making a draft whichdraws hot air out of the heater s at bb at thesame time drawing cold air into the heater s at nil d is a discharge pipe of double the capacity ofc and carries off hot air from cc out at e whene 2akhdgc.jpg from algún grupo de rappe bdsm similar casero View Photo